Here’s a description by Middlespot:

Have you ever wanted a blank workspace on the web where you could paste anything you like in any order you want? A mashtab lets you do just that.

Collect relevant websites, links, images, videos, files, widgets, and just about anything in one central spot, access it from anywhere, or even embed it in another website.

You can annotate, cluster, layer, pan, resize, tweet and share the content you’ve collected. A mashtab makes a great start page or personal collection of interests.
Mashtab Web Site

Screenshot of mashtabs.com

Mashtab Interface

Developers that are comfortable with Firebug or the Web Developer Toolbar plugins for Firefox will find the interface familiar. There’s a toolbar at the bottom of the page that lets you edit your particular tab. There’s also a search engine above, powered by BOSS, that lets you find new information for your mash tab.

PopGist improves the relevancy of the existing search engines and provides better user search experience. The prototype in popgist.com demonstrates the power of PopGist technology by utilizing the search feed provided by Yahoo BOSS. Comparing with the original Yahoo search results, the overlap in the top ten results between Google and Yahoo significantly increases by using PopGist search ranking algorithm for most of the queries tested.
PopGist improves the relevancy of major search engines – AltSearchEngines

PopGist uses BOSS, but reranks the results and adds threads of discussions to give you a more rounded result page.

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I gave a presentation at the recent www2009 conference in Madrid about the Future of Vertical Search Engines. It was a great event and I enjoyed watching researchers and developers from across the world informally discuss ideas and collaborations.

The Yahoo! Developer Network just published my blog post: The Future of Vertical Search Engines. The blog post includes much more information that is hard to describe in a simple set of PowerPoint slides.

I hope you find the information helpful. Join the conversation on the YDN blog.

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